area

问题 I am a newbie to matlab and trying to find the area under the curve (AUC) for a part of the graph not the entire graph. I am interested to calculate separate AUC from 2 regions; one from -350 to -100 and other from -100 to +150 present on the x axis. how can I calculate AUC for these portion of the graph (not for entire x-axis)? not enough reputation to provide the figure. If someone from the community can provide a matlab code. Every couple of values in the data set correspond to x,y

问题 I have some points in database that make polygon on map. i am using Google Map Api v 3 . Now I am trying to add some area in polygon such as I would like to add 100m in every side of polygon and make new one on map along with the original. I tried that but it not make correctly. i add up my code here. Note 100m area is just example value Code $(function() { mapOptions = new Object(); mapOptions.zoom=19; mapOptions.center = new google.maps.LatLng(33.575802425924934, 73.14534723758698);

问题 I want to show how big Brazilian Amazon Forest is, plotting different countries inside it. Like in this image: To accomplish that, I loaded some shapefiles and changed their projection to one that would keep the areas proportional, like Cylindrical Equal Area: library(rgdal) countries <- readOGR("shp","TM_WORLD_BORDERS-0.3") countries <- spTransform(countries,CRS("+proj=cea")) amzLegal <- readOGR("shp","amazlegal") amzLegal@proj4string <- CRS("+proj=longlat") amzLegal <- spTransform(amzLegal

问题 I've been working on a Batch polygon area calculator and I got a problem. I need to multiply 2 variables, but sometimes it return a negative number if the two positive variables are large. Here's an example: 999999*999999 returns -729379967 . Code goes below: REM Calc square area :PolySqu Cls Echo Polygon Area Calculator For /L %%P In (1,1,57) Do Echo. Set /P "InputPolygonCalSqu=Enter one of the line's length in cm :" Set /A SquArea=InputPolygonCalSqu * InputPolygonCalSqu Cls Echo Polygon

问题 I have the following combinations of graphs: import pylab as pl import numpy as np def gauss2d(x,sigma): return (1/np.sqrt(2*np.pi*sigma ))*np.exp(-1/2*(x/sigma)**2 ) def markParameters(m,s,textsigma, textmean): p1=gauss2d(s,s) p2=gauss2d(0,s) pl.annotate("", xy=(m-s, p1), xycoords='data', xytext=(m+s, p1), textcoords='data', arrowprops=dict(arrowstyle="<->", connectionstyle="arc3"),) pl.text(m,p1,textsigma,horizontalalignment='center',verticalalignment='top') pl.annotate("", xy=(m, p2*1.1),

问题 I can get my code to compile, but it doesn't produce the area that is desired. I'm not sure where I have stumbled. They want you to have the user enter 6 coordinates (x and y value) for the 3 points of a triangle and get the area. My code is as follows: import java.util.Scanner; public class AreaTriangle { // find the area of a triangle public static void main (String [] args) { double side1 = 0; double side2 = 0; double side3 = 0; Scanner input = new Scanner(System.in); //obtain three points

问题 I want to define a geographical boundary outside of which, the app will refuse to work. I already know how to do this with a square bound by two lat/long pairs: if ((dLAT.doubleValue() > 35.309171) || (dLAT.doubleValue() < 35.226442) || (dLON.doubleValue() < -92.790165) || (dLON.doubleValue() > -92.707081)) { LocalBroadcastManager localBroadcastManager = LocalBroadcastManager.getInstance(this); localBroadcastManager.sendBroadcast(new Intent("killapp")); } I also know about geofencing... or

问题 On Apple's built-in Voicemail app, when it finds a phone number it does not recognize in your address book, it displays an approximate location under the number, presumably based on the phone number. How did they do that?? I'd guess there's a large database of area codes and exchange numbers on the phone, each mapping to a city or region name. Does anyone know if this mapping is accessible to apps via a public API? There's lots of boilerplate code out there for mapping ZIP code to city, but I

问题 In an MVC4 web application, what is the best way to create an Area? Can it be automated or is it a manual process of creating the controller, View folder etc? 回答1: Right click on the ASP.NET MVC project in the solution explorer and select Add Area... in the contextual menu. Then type the name of the area and proceed: 来源： https://stackoverflow.com/questions/13779745/create-area-in-mvc-project

问题 I have used bwconvhull to detect a certain part of the image, as you can see in the image, there are number of objects with certain centroids. What I want to do is to detect the object with the largest area (1st big one from the left) and neglect the others. Which method should I follow? I will be very thankful for your help. The following is the code (it's very roughly written as I am still working on it. Sorry for any inconvenience in advance) CH_objects = bwconvhull(c,'objects'); imshow(CH